public IEnumerable<AddressRange> Parse(Stream stream)
{
var reader = new StreamReader(stream);
string result = null;
var r = new Regex(@"([0-9]{1,3}\.){3,3}[0-9]{1,3}");
while ((result = reader.ReadLine()) != null)
{
MatchCollection collection = r.Matches(result);
if (collection.Count == 1)
{
var range = new AddressRange();
string[] s = collection[0].Captures[0].Value.Split('.');
range.Start = (int.Parse(s[0]) << 24) | (int.Parse(s[1]) << 16) | (int.Parse(s[2]) << 8) | (int.Parse(s[3]));
range.End = range.Start;
yield return range;
}
else if (collection.Count == 2)
{
string[] s = collection[0].Captures[0].Value.Split('.');
int start = (int.Parse(s[0]) << 24) | (int.Parse(s[1]) << 16) | (int.Parse(s[2]) << 8) | (int.Parse(s[3]));
s = collection[1].Captures[0].Value.Split('.');
int end = (int.Parse(s[0]) << 24) | (int.Parse(s[1]) << 16) | (int.Parse(s[2]) << 8) | (int.Parse(s[3]));
var range = new AddressRange();
range.Start = start;
range.End = end;
yield return range;
}
}
}
public void Add(AddressRange addressRange)
{
addresses.Add(addressRange);
}
public bool Contains(AddressRange range)
{
return range.Start >= Start && range.End <= End;
}
private void Remove(AddressRange addressRange)
{
addresses.Remove(addressRange);
}
void Remove(AddressRange addressRange)
{
addresses.Remove(addressRange);
}
public void Add(AddressRange addressRange)
{
addresses.Add(addressRange);
}
public bool Contains(AddressRange range)
{
return(range.Start >= Start && range.End <= End);
}